Abbott i-STAT 1 Manuale d'uso - Pagina 3

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Replacing Paper in the i-STAT Printer

Open the paper compartment lid by pulling up on the release lever and remove

any remaining paper.

Reel off a few centimeters of paper from the new paper roll, with the leading

edge of the paper feeding forward from the bottom of the roll.

Sit the new paper roll in the compartment such that the leading edge is resting

outside the compartment on the printer casing.

Close the lid until it snaps into place.

Troubleshooting

Unexpected Results

When results do not reﬂect the patient's condition, repeat the test using a fresh cartridge

and sample. If results are still suspect, test the lot of cartridges in use with i-STAT control

solutions. If the controls are in range, there may be an interfering substance in the

sample. Check the Cartridge and Test Information sheets for the test in question. Test

by another method to verify the result. If the controls are out of range there may be a

problem with the cartridge lot number. Use another lot number or repeat the test using

another method, and refer to Support Services Information in the Technical Bulletin

section of the i-STAT 1 System Manual.

Startup Messages

The handheld performs self-checks when it is turned on. If a condition that should be

corrected in the near future, but that will not affect results, is detected, a warning is

displayed. The operator presses the 1 key to access the Test Menu. The handheld can

be customized to lock out the operator until the corrective action is taken.

Message

Electronic Simulator Test Required

Stored Memory Low

Stored Memory Full

Upload Required

Battery Low

CLEW Expiring, Update Required

Action

Insert Electronic Simulator.

Place handheld in Downloader.

Replace batteries or recharge battery.

Update software.

Blood Collection

Acceptable Samples for Cartridges

Arterial: Plain syringe, heparinized syringe labeled for analytes to be tested and ﬁlled to

capacity, or syringe with minimum volume of heparin to prevent clotting (10 U/mL of

blood). For ionized calcium, use balanced heparin syringes. Mix heparinized syringes by

rolling between palms for at least 5 seconds in 2 directions, then invert the syringe

repeatedly for at least 5 seconds. Test for lactate immediately. Samples for pH, PCO

TCO

and ionized calcium should be tested within 10 minutes. Test for other analytes

2 ,

within 30 minutes.

•

Avoid drawing air into syringes for blood gas and ionized calcium tests.

•

If not tested immediately, remix and discard 2 drops of blood before ﬁlling

cartridge.

•

Do not use iced samples.

Venous: Collection tube with lithium heparin ﬁlled to capacity and mixed by gentle

inversion at least 10 times. Test within 10 minutes.

•

Do not leave tourniquet on for more than 2 minutes.

•

Do not draw above an I.V.

Skin puncture: Lithium heparin capillary tubes for testing all analytes but ionized

calcium. For all analytes including ionized calcium, use plain or balanced heparin

capillary tubes. Test immediately.

•

Allow alcohol to dry over puncture site before collecting sample.

•

Do not "milk" ﬁnger or heel while collecting sample.

Coagulation Tests:

•

The ACT test can be performed using venous or arterial samples, while the

PT/INR test can be performed using capillary or venous samples.

•

Use plain plastic syringes or plastic evacuated tubes with no anticoagulant,

activators, or serum separators.

•

Test sample immediately upon draw.

•

For venipuncture, some experts recommend drawing and discarding a sample of

at least 1 mL prior to drawing samples for coagulation testing.

•

If a second measurement is needed, draw a fresh sample.

•

For Indwelling line testing for ACT:

Fluid drip through the line must be discontinued.

If blood must be drawn from an indwelling line, possible heparin contamination

and specimen dilution should be considered. The line should be ﬂushed

with 5 mL of saline and the ﬁrst 5 mL of blood or six dead space volumes

should be discarded.

Withdraw the sample into a fresh plastic syringe with no anticoagulant, and

test immediately.

•

For extracorporeal line testing for ACT:

Flush the extracorporeal blood access line by withdrawing 5 mL of blood

into a syringe and discard the syringe.

Withdraw the sample into a fresh plastic syringe with no anticoagulant, and

test immediately.